Roadbed construction



Feb. 4, 1930. l w P DAY ROADBED CONSTRUCTION Filed July 15, 1929 2 Sheets-Sheet 1 |||IlIIIIIHIIAIIIIIIIIII l III I I III I IIII I III l l I Ii\\\\\`\\\\\\`\\\\\l |I|| llllllllllf m "ulllllllq l l wmwwwwhwmdrwwh u ....H...

I IIIIIIFILII III I I I I l I n n l INVENTOR Feb. 4, 1930. w. P. DAY

ROADBED CONSTRUCTION Filed July 15, 1929 2 Sheets-Sheet 2 n 4 .w Q v n .C i x "f Y ,f

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' lflJNirEo s'larlszsr PAT-ENT oil-FICE WILLIAM r. DAY, or GLEVELAND HEIGHTS, omo

nommenv CONSTRUCTION Applcationvled July 15, 1929. Serial No. 378,231.y

Thisk inventionr relatesv to a roadbed condrawings in which Fig. 1 is a fragmentary struction for street or boulevard railways and plan view of the roadbed before the upper the main object of the invention is to provide layer of road forming material is poured a roadbed construction in which water will be and disclosing` the centrally disposed drain drained away from the bases of the rails and openingsand the branch drain openings adj aprevented from seeping in around the 't rail centthebases ofY the railsjand also disclosing plates; v v the preferred type of tie; Fig. 2 is a Vertical Another object of theinvention is to pro-. sectional view on the line 2-2 of Fig. 1; Fig. Videla roadbed construction of the character 3 is a vertical 'sectional viewon the Vline 3--3-of 1o described inV `which the rails yare supported Fig. 1. i

y upon a lower layer or foundation of concrete Referring now to they drawings, reference which is` provided with drain openings to character 1 designates the bottom layer of permit the water to escape away from the concrete. which will be referred to as the y bases of the rails. foundation. Disposed below the foundation 1'53' VA further obj ect-,of the inventionis to proand between. the rails is a drain conduit 2 65 vide al roadbed construction of the character which extendslongitudinally ofthe track and described which consists of a foundation of parallel therewith. Arranged at intervals concrete provided with suitable drainy openabout three feety apart and extending across ings for draining the water away frornthe rail the roadbed are. trenches; 3 from which lead' j bases andin which the :upper portion yof the branches 4, 4a, and 5,5a. The trenches 3 and 70 .roadbed is formed of a'Y layer of materialy the branches; 4;, 4a! and 5', 5a are filled with which is` readily removablev to permitv the' gravel, stone, cinders or other suitablernaterailsto be replaced or repaired. v rial adapted to permit water tov drain there- A further object of the invention is to prothrough and into the main Adrain rconduit 2 vide a. roadbed construction in `which the Which is preferably formed of drain tile. 75 bases of the railsare covered with a waterf Supported upon the foundation 1 are ties 6 proofing material which tends to direct the Whichvare preferably made ofsteel'and are of water away from the rails and into suitable thev twin type. The ties consist essentiallyl of drain Openings-. j v Y rail plates 7 and 8 which are connected by 3o. A Still further object of the inventionis to Cross bars A9 and 10. The rail plates arepro 30 provide a roadbed construction of the char vided with oppositely disposed pairs of T- acter described which is provided with a censhapedopenings 11 and 12 which are adapttrally disposed drainor drain conduit which edtofreceive tiez clamps for securing the rails i'sdisposed between the railsandV from which lnplace.

leadbranch drain conduits leading topoints The 'eS are SUPPOFSCl On'tlle foundation 85 adjacent the bases of the rails andalong each andthe cross-beams orV bars 9 and 10 are parsde; thereof. v tially embedded therein as shown most-clearly 'A still further object ofthe invention is to in Fig. 2; vThe foundation is kfirst laid with yprovidearoadbed constructionofthe charac-y the-rails supported in the position Shown in .49* ter described whichv consists of a concrete Fig: 2y and the concrete is. allowed to harden 90 foundationon whicharesupported steel ties and set;v The space beneath "the rail plates ofthe twin typefwhich are so arrangedasto and 8 isiilledwith suitable material which permitthematerial'under the rail plates to.v is tamped in place in a manner well known v be retamped whwzngnecessary4 or desired and in to those skilled in` the art. rllhe rails `13 ,which the' uppeplayep 0f road formngmaand, 141 are first secured to the rail plates by 95 terial is readily removable topermit access to meanszofrsuitabletie clamps. The rail'plates 4 the railsor therernoval of the same. andthe bases ofthev rails are then covered Further, andinore limited? objects of the withV a waterproof material known asy bituy invention will appear as the description prominous concrete which Consists essentially of sogcedsiand byrreferencetothe accoinpanying-f slagviandficrude asphalt in approximatel'yl the 100 following proportions: 3 parts line slag, 2 parts course slag, 1 part crude asphalt.'

A second layer of concrete 15 is then laid up to the level indicated by the line a-a of Fig. 2. After this layer of material has hardened and set, a layer of surface mate-Y rial 16 is then applied which lmay consist of asphalt or any other suitable material.

According to the preferred manner of form-v ing the roadbed construction hereinbefore described, I first provide a-trench of suitable depth and which is slightly Wider than the track. I then place between the track and adjacent the bottom of theftrench the Ina-in drain conduit 2 which is preferably formed of drain tile. Suitable forms are then inserted to provide the trenches 3 and the branch drain openings 4, la and 5, 5a leading to points adjacent the opposite edges of therails. The

ties are then arranged in place and supported' on suitable blocks and the rails secured thereto in a manner well known to those skilled in the art. The lowermost layer or foundation of concrete is then poured in a manner well known to those skilled in the art and allowed to harden and set.v The spaces beneath the rail plates are vthen lled with suitable material and tamped in place by means of atamping machine or in any other manner desired. The rail plates and the bases of the rails are then covered with a layer offbituminous ccncrete up to about the level shown in Figs. 2 and 3. VThe second Alayer of concrete is then poured up to the level indicated by the line L,0i-z in Fig.k 2 and allowed to harden and set. The layer of surface material 16' is then applied in any suitable manner. By referring to the drawing, it will be seen that the branch drain conduits extend only through lthe road foundation and terminate at points adjacent the bases ofthe rails and also adjacent the rail plates. These drain openings are preferably about three feet apart and eX- tend along both sides of the rails.

It will now be clear lthat any water which may seep in along the rails will strike the layer of bituminous concrete which is waterproof and be deflected into the branch drains*` 4, 4a and 5, 5EL and drain into the main conduit j. 2. 'It will also beclear that the upper layers of material may be removed down to the foundation without disturbingthe rails so as to permit removal or replacement of thetrack or retamping of the ties without disturbing the foundation. With this construction I am able to practically prevent any water from seeping in around thebases of the rails or the rail plates.

Various changes may be made in the man- VV.ner of assembling and'arranging theivar'ious partsv without departing from the spirit'vof` the invention. My invention is also not limited to any particular type of roadkforming materiall either for the foundation or for the uppermost layers.- 'While I have'in this specification used the term concrete it is to be understood that I do not intend by this to limit the invention to any specific mixture of material but rather to use the term generically as embracing all of that class of materials in which a suitable bonding material such ascement or asphalt is used in connec* tionwith gravel, stone or sands, Itis there;

fore to be understood that the invention is limited onlyinaccordance with the scope of the appended claims.V

Having thus described my invention, what I claim is:

1. In a roadbed construction for railways,-

a concrete foundation, a plurality of cross ties resting on said foundation, rails secured to said ties, a Waterproof material coveringy said ties and the bases of said rails, a layer of concrete covering said foundation and a layer of surface material covering said layer of concrete, a drain conduit disposed between said rails and a plurality of branch drain conduits leading from points adjacentrtheY rails and adapted to deliver into said first mentioned conduit.

2. In a roadbed construction for railways, a concrete foundation, a plurality of cross Vties resting on said foundation, rails securedl to,

said ties, a waterproof material covering said ties'and the bases ofk said rails, a layer of concrete covering said foundation and a layer of surfaceinaterial covering saidlayer of concrete, a drain conduit disposed between said rails and a plurality of branch drain conduits leading from points adjacent therails and adapted'to deliver into saidiirst mentioned conduit, said branch drain conduits extendf leadingfroin `points adjacent the rails and adapted to deliver into said firstmentioned its conduit, said branch drain conduits extend i ing only through said foundation yand termi nating adjacentthe bases of said rails, said waterproof material consisting of bituminous concrete and being disposed so as to deflect water into said branch drain conduits. l

4C. A roadbed construction lfor "street or i boulevard railways comprising a concrete foundation, a plurality of tiesV supported on said foundation, rails secured to' saidV ties,A a layer of waterproof materiallcovering the bases of said rails and the end portions of said ties, a maindrain conduit disposed between saidrails, branch drain conduits leading from said main drain conduit'and terminating ad- 'n jacent the rail bases and road forming material filling the yspace between and along said ra1 s. v

f 5. A roadbed construction for street or boulevard railways comprising a concrete foundation, a plurality of ties supported on said foundation, rails secured to said ties, a layer of waterproof material covering the bases of said rails and the end portions of said ties, a main drain conduit disposed between said rails, branch drain conduits leading f from said main drain conduit and terminating adjacent the rail bases and road forming material filling the space between and along said rails, lsaid branch drain conduits extending only through isaid foundation and ter- Y minating adjacent the rail bases.

6. A roadbed construction for street or boulevard railways comprising a concrete foundation, a plurality of ties supported on saidrv foundation, rails secured to said ties, a layer of waterproof material covering ythe bases of said rails and the end portions of said ties, a main drain conduit disposed between said rails, branch drain conduits leading from said main drain conduit and terminating adjacent the rail bases and road forming material filling the space between and along said rails, said branch drain conduits extending only through said foundation and terminating adjacent the rail bases, said vwaterproof material consisting of bituminous concrete and serving to deflect water into said branch drain conduits. v

7. A roadbed construction for street or boulevard railways comprising a concrete foundation, a plurality of steel twin ties supported on said foundation and partially em bedded therein, said ties having rail plates which are disposed in a plane above said foundation, a pair of rails secured to said rail rplates respectively, a waterproof material covering said rail plates and the bases of said rails, a road forming material filling the space between and along said rails, a m'ain drain conduit disposed between said rails, a plurality of branch ldrain conduits leading from points adjacent the rail bases and adapted to deliver into said main drain conduit.'

8. Afroadbed construction for street or i boulevard *railways comprising a concrete foundation, a plurality of steel twin ties supported on said foundation and partially embedded therein, said ties having rail plates which are disposed in a plane above said foundation, a pair of rails secured to said rail plates respectively, ya waterproof material covering said rail plates and the bases of said through said foundation and leading from opposite sides of the rails respectively.

f 9. A roadbed construction for street or boulevard railways comprising a concrete foundation, a plurality of steel twin ties supported on said foundation and partially embedded therein, said ties having rail plates which are disposedin a plane above said foundation, a pair of rails secured to said rail plates respectively, a waterproof material covering said rail plates and the bases of said rails, a road forming material filling the space between and along said rails, a main drain conduit disposed between said rails, a plurality of branch drain conduits leading from points adjacent the rail bases and adapted to deliver into said main drain conduit, said branch drain conduits extending only through said foundation and leading from opposite sides of the rails respectively, said waterproof material consisting of bituminous concrete and serving to deflect water from the bases of the rails into said branch drain conduits.

10. A roadbed construction for'street or boulevard railways comprising a concrete foundation, a plurality of ties supported on said foundation, a pair of rails supported on said ties, amain drain conduit disposed between said pair of rails and having a plurality of branches leading therefrom and terminating adjacent the bases of said rails, road forming Vmaterial filling the space between and alongsaid rails, said road forming material being removable without disturbing said foundation.

11. A roadbed construction for street or boulevard railways comprising a concrete foundation, a plurality of ties supported on said foundation, a pair of rails supported on said ties, a main drainconduit disposed between said pair of rails and having a plurality of branches leading therefrom and terminating adjacent the bases of said rails, road forming material filling the space between and along said rails, said road forming material being removable without disturbing said foundation, said branch drains leading from opposite sides of said rails respectively and lying Wholly within said foundation.

In testimony whereof, I hereunto aflix my signature.'

WILLIAM P. DAY.

rails, a road forming material filling the space between and along said rails, a main drain conduit disposed between said rails, a plurality of branch drain conduits leading from points adjacent the rail bases and adapted to deliver into said main drain conduit,

said branch drain conduits extendingy only 

